Deprecate the setAnnotatedClassCache() and getAnnotatedClassesToCompile() methods of the Kernel class
Add #[MapUploadedFile] attribute to fetch, validate, and inject uploaded files into controller arguments
7.0
Add argument $reflector to ArgumentResolverInterface::getArguments() and ArgumentMetadataFactoryInterface::createArgumentMetadata()
Remove ArgumentValueResolverInterface, use ValueResolverInterface instead
Remove StreamedResponseListener
Remove AbstractSurrogate::$phpEscapeMap
Remove HttpKernelInterface::MASTER_REQUEST
Remove terminate_on_cache_hit option from HttpCache
Require explicit argument when calling ConfigDataCollector::setKernel(), RouterListener::setCurrentRequest()
Remove Kernel::stripComments()
Remove FileLinkFormatter, use FileLinkFormatter from the ErrorHandler component instead
Remove UriSigner, use UriSigner from the HttpFoundation component instead
Add argument $buildDir to WarmableInterface
Add argument $filter to Profiler::find() and FileProfilerStorage::find()
6.4
Support backed enums in #[MapQueryParameter]
BundleInterface no longer extends ContainerAwareInterface
Add optional $className parameter to ControllerEvent::getAttributes()
Add native return types to TraceableEventDispatcher and to MergeExtensionConfigurationPass
Add argument $validationFailedStatusCode to #[MapQueryString] and #[MapRequestPayload]
Add argument $debug to Logger
Add class DebugLoggerConfigurator
Add parameters kernel.runtime_mode and kernel.runtime_mode.*, all set from env var APP_RUNTIME_MODE
Deprecate Kernel::stripComments()
Support the ! character at the beginning of a string as a negation operator in the url filter of the profiler
Deprecate UriSigner, use UriSigner from the HttpFoundation component instead
Deprecate FileLinkFormatter, use FileLinkFormatter from the ErrorHandler component instead
Add argument $buildDir to WarmableInterface
Add argument $filter to Profiler::find() and FileProfilerStorage::find()
Add ControllerResolver::allowControllers() to define which callables are legit controllers when the _check_controller_is_allowed request attribute is set
6.3
Deprecate parameters container.dumper.inline_factories and container.dumper.inline_class_loader, use .container.dumper.inline_factories and .container.dumper.inline_class_loader instead
FileProfilerStorage removes profiles automatically after two days
Add #[WithHttpStatus] for defining status codes for exceptions
Use an instance of Psr\Clock\ClockInterface to generate the current date time in DateTimeValueResolver
Add #[WithLogLevel] for defining log levels for exceptions
Add skip_response_headers to the HttpCache options
Introduce targeted value resolvers with #[ValueResolver] and #[AsTargetedValueResolver]
Add #[MapRequestPayload] to map and validate request payload from Request::getContent() or Request::$request->all() to typed objects
Add #[MapQueryString] to map and validate request query string from Request::$query->all() to typed objects
Add #[MapQueryParameter] to map and validate individual query parameters to controller arguments
Collect data from every event dispatcher
6.2
Add constructor argument bool $handleAllThrowable to HttpKernel
Add ControllerEvent::getAttributes() to handle attributes on controllers
Add #[Cache] to describe the default HTTP cache headers on controllers
Add absolute_uri option to surrogate fragment renderers
Add ValueResolverInterface and deprecate ArgumentValueResolverInterface
Add argument $reflector to ArgumentResolverInterface and ArgumentMetadataFactoryInterface
Deprecate calling ConfigDataCollector::setKernel(), RouterListener::setCurrentRequest() without arguments
6.1
Add BackedEnumValueResolver to resolve backed enum cases from request attributes in controller arguments
Add DateTimeValueResolver to resolve request attributes into DateTime objects in controller arguments
Deprecate StreamedResponseListener, it's not needed anymore
Add Profiler::isEnabled() so collaborating collector services may elect to omit themselves
Add the UidValueResolver argument value resolver
Add AbstractBundle class for DI configuration/definition on a single file
Update the path of a bundle placed in the src/ directory to the parent directory when AbstractBundle is used
6.0
Remove ArgumentInterface
Remove ArgumentMetadata::getAttribute(), use getAttributes() instead
Remove support for returning a ContainerBuilder from KernelInterface::registerContainerConfiguration()
Remove KernelEvent::isMasterRequest(), use isMainRequest() instead
Remove support for service:action syntax to reference controllers, use serviceOrFqcn::method instead
5.4
Add the ability to enable the profiler using a request query parameter, body parameter or attribute
Deprecate AbstractTestSessionListener and TestSessionListener, use AbstractSessionListener and SessionListener instead
Deprecate the fileLinkFormat parameter of DebugHandlersListener
Add support for configuring log level, and status code by exception class
Allow ignoring "kernel.reset" methods that don't exist with "on_invalid" attribute
5.3
Deprecate ArgumentInterface
Add ArgumentMetadata::getAttributes()
Deprecate ArgumentMetadata::getAttribute(), use getAttributes() instead
Mark the class Symfony\Component\HttpKernel\EventListener\DebugHandlersListener as internal
Deprecate returning a ContainerBuilder from KernelInterface::registerContainerConfiguration()
Deprecate HttpKernelInterface::MASTER_REQUEST and add HttpKernelInterface::MAIN_REQUEST as replacement
Deprecate KernelEvent::isMasterRequest() and add isMainRequest() as replacement
Add #[AsController] attribute for declaring standalone controllers on PHP 8
Add FragmentUriGeneratorInterface and FragmentUriGenerator to generate the URI of a fragment
5.2.0
added session usage
made the public http_cache service handle requests when available
allowed enabling trusted hosts and proxies using new kernel.trusted_hosts,
kernel.trusted_proxies and kernel.trusted_headers parameters
content of request parameter _password is now also hidden
in the request profiler raw content section
Allowed adding attributes on controller arguments that will be passed to argument resolvers.
kernels implementing the ExtensionInterface will now be auto-registered to the container
added parameter kernel.runtime_environment, defined as %env(default:kernel.environment:APP_RUNTIME_ENV)%
do not set a default Accept HTTP header when using HttpKernelBrowser
5.1.0
allowed to use a specific logger channel for deprecations
made WarmableInterface::warmUp() return a list of classes or files to preload on PHP 7.4+;
not returning an array is deprecated
made kernels implementing WarmableInterface be part of the cache warmup stage
deprecated support for service:action syntax to reference controllers, use serviceOrFqcn::method instead
allowed using public aliases to reference controllers
added session usage reporting when the _stateless attribute of the request is set to true
added AbstractSessionListener::onSessionUsage() to report when the session is used while a request is stateless
5.0.0
removed support for getting the container from a non-booted kernel
removed the first and second constructor argument of ConfigDataCollector
removed support for Symfony\Component\Templating\EngineInterface in HIncludeFragmentRenderer, use a Twig\Environment only
removed TranslatorListener in favor of LocaleAwareListener
removed getRootDir() and getName() from Kernel and KernelInterface
removed FilterControllerArgumentsEvent, use ControllerArgumentsEvent instead
removed FilterControllerEvent, use ControllerEvent instead
removed FilterResponseEvent, use ResponseEvent instead
removed GetResponseEvent, use RequestEvent instead
removed GetResponseForControllerResultEvent, use ViewEvent instead
removed GetResponseForExceptionEvent, use ExceptionEvent instead
removed PostResponseEvent, use TerminateEvent instead
removed SaveSessionListener in favor of AbstractSessionListener
removed Client, use HttpKernelBrowser instead
added method getProjectDir() to KernelInterface
removed methods serialize and unserialize from DataCollector, store the serialized state in the data property instead
made ProfilerStorageInterface internal
removed the second and third argument of KernelInterface::locateResource
removed the second and third argument of FileLocator::__construct
removed loading resources from %kernel.root_dir%/Resources and %kernel.root_dir% as
fallback directories.
removed class ExceptionListener, use ErrorListener instead
4.4.0
The DebugHandlersListener class has been marked as final
Added new Bundle directory convention consistent with standard skeletons
Deprecated the second and third argument of KernelInterface::locateResource
Deprecated the second and third argument of FileLocator::__construct
Deprecated loading resources from %kernel.root_dir%/Resources and %kernel.root_dir% as
fallback directories. Resources like service definitions are usually loaded relative to the
current directory or with a glob pattern. The fallback directories have never been advocated
so you likely do not use those in any app based on the SF Standard or Flex edition.
Marked all dispatched event classes as @final
Added ErrorController to enable the preview and error rendering mechanism
Getting the container from a non-booted kernel is deprecated.
Marked the AjaxDataCollector, ConfigDataCollector, EventDataCollector,
ExceptionDataCollector, LoggerDataCollector, MemoryDataCollector,
RequestDataCollector and TimeDataCollector classes as @final.
Marked the RouterDataCollector::collect() method as @final.
The DataCollectorInterface::collect() and Profiler::collect() methods third parameter signature
will be \Throwable $exception = null instead of \Exception $exception = null in Symfony 5.0.
Deprecated methods ExceptionEvent::get/setException(), use get/setThrowable() instead
Deprecated class ExceptionListener, use ErrorListener instead
added orphaned events support to EventDataCollector
ExceptionListener now logs exceptions at priority 0 (previously logged at -128)
Added support for using service::method to reference controllers, making it consistent with other cases. It is recommended over the service:action syntax with a single colon, which will be deprecated in the future.
Added the ability to profile individual argument value resolvers via the
Symfony\Component\HttpKernel\Controller\ArgumentResolver\TraceableValueResolver
4.0.0
removed the DataCollector::varToString() method, use DataCollector::cloneVar()
instead
using the DataCollector::cloneVar() method requires the VarDumper component
removed Extension::addClassesToCompile() and Extension::getClassesToCompile()
removed Kernel::loadClassCache(), Kernel::doLoadClassCache(), Kernel::setClassCache(),
and Kernel::getEnvParameters()
support for the X-Status-Code when handling exceptions in the HttpKernel
has been dropped, use the HttpKernel::allowCustomResponseCode() method
instead
removed convention-based commands registration
removed the ChainCacheClearer::add() method
removed the CacheaWarmerAggregate::add() and setWarmers() methods
made CacheWarmerAggregate and ChainCacheClearer classes final
3.4.0
added a minimalist PSR-3 Logger class that writes in stderr
made kernels implementing CompilerPassInterface able to process the container
deprecated bundle inheritance
added RebootableInterface and implemented it in Kernel
deprecated Symfony\Component\HttpKernel\EventListener\ErrorsLoggerListener, use Symfony\Component\HttpKernel\EventListener\DebugHandlersListener instead
deprecated unused method Symfony\Component\HttpKernel\Kernel::isClassInActiveBundle and Symfony\Component\HttpKernel\KernelInterface::isClassInActiveBundle
2.5.0
deprecated Symfony\Component\HttpKernel\DependencyInjection\RegisterListenersPass, use Symfony\Component\EventDispatcher\DependencyInjection\RegisterListenersPass instead
2.4.0
added event listeners for the session
added the KernelEvents::FINISH_REQUEST event
2.3.0
[BC BREAK] renamed Symfony\Component\HttpKernel\EventListener\DeprecationLoggerListener to Symfony\Component\HttpKernel\EventListener\ErrorsLoggerListener and changed its constructor
deprecated Symfony\Component\HttpKernel\Debug\ErrorHandler, Symfony\Component\HttpKernel\Debug\ExceptionHandler,
Symfony\Component\HttpKernel\Exception\FatalErrorException and Symfony\Component\HttpKernel\Exception\FlattenException
